Optimized Top Quark Analysis with the Decision Tree

Details Optimized Top Quark Analysis with the Decision Tree Optimized Top Quark Analysis with the Decision Tree

1995-03-28

arxiv.org/abs/hep-ph/9503453v2

Phys.Rev. D52 (1995) 6309-6315

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, uses revtex macros, postscript figures in .uu format, or available from the Authors.

Scientific paper

10.1103/PhysRevD.52.6309

We present an optimized and physically motivated method for separating top quark signal events from background events at the Tevatron. For the top quark signal $t\bar t \to e/\mu + 4$ jets, we show how to reject all but $25\%$ of the background in a data sample while retaining $80\%$ of the signal, without introducing bias into the subsequent mass measurement. The technique used is the Binary Decision Tree. Combining this highly efficient procedure for signal identification with a novel algorithm for top quark reconstruction, we propose a powerful new way to measure the top quark mass.

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